From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 37A3935DA42 for ; Wed, 15 Apr 2026 18:00:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776276032; cv=pass; b=QRjqOi1AUTBfXT0m3xCwLN1NyKyKNC8ctQmIRZwM/+ObUX9RrWjRMUTotLDEEliPsl0Q47Atu1zV0UcCUF0CpFlQmGnfnhxrAiReQuacy+JykZ8THcra1N4yKc2hhzM0xputyXsClpMmqcp5zHyswP8KJl6TMh780oDOY52dT/g= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776276032; c=relaxed/simple; bh=lSz/xL2dLt2oD/VJLI9GcNTu5bTMiCpy5rbbe0SXSB0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=GBNf/hEsFlW1PIV3XAxeHhTISgmZ/Dm0GGrmGKXD3RyDp6Lbz4YThID3aO0S0o8mr1dSNRrl7col4x95X2PoR/gKoG1hgE87ENeJ9gkMfO5KxWgTWtlixXtnbgaclr5HRGxBkCOVlPP5Evm3uy/F5UduFFK/BBoJ+NoXbUEh95c= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=dL02vGEU; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="dL02vGEU" ARC-Seal: i=1; a=rsa-sha256; t=1776276006; cv=none; d=zohomail.com; s=zohoarc; b=isSt4nV2sbA24BLpgxx8aP50mpocM7khHu8gtlwOU1e72MbAH8deM3nsgr+G00xY/M4uGnvyDBQYb/Pg43TxlINBYYQ8GWHw0KiO0R1IEuCe0uEwSGhlewpxi0ugbVshkMz1hjSvljCCTv43lpFyqZm6EgQ3DKzX0tarhAW/vgc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1776276006; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=CJ9S9SYweRejpCw9A46ovCcBNk/A0W+USSJumRpgMy4=; b=EdIV9KLXIMIcDLKa5LadDDzRJ6LWaakNR9cExDI+TKRCi+Pc1a+vkPNagLFdkI+JvPzSU8byaSSy2AFUVffxb+7pxfBq7tR2xgT6qZu4sXKPEbVV79XF+bOadEn9pjH6Pb2DQsjTtDc4xvpyAuEqn1hwyZcOH/n+lMIxrm80zvE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1776276006; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=CJ9S9SYweRejpCw9A46ovCcBNk/A0W+USSJumRpgMy4=; b=dL02vGEU8p4jD64v4rpPuLCe5jLaP5fRZ1sFqdK2qp+GXeWV+rS1pjkPkMwFoJdA IS/8orBl/HmNAJ1e74W1GfJDoEenddV4TE+n413/PWTkpkW2uB7qXvLY9hTmXiJfvtc CYeDDLk24KFt5jAr9XUJZQ6/zDoBdbsI2/KsFhBc= Received: by mx.zohomail.com with SMTPS id 1776276004760751.849826698265; Wed, 15 Apr 2026 11:00:04 -0700 (PDT) From: Nicolas Frattaroli Date: Wed, 15 Apr 2026 19:59:39 +0200 Subject: [PATCH RESEND v7 1/2] drm: Introduce pending_hp to drm_connector Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260415-hot-plug-passup-v7-1-9a27ef5e2428@collabora.com> References: <20260415-hot-plug-passup-v7-0-9a27ef5e2428@collabora.com> In-Reply-To: <20260415-hot-plug-passup-v7-0-9a27ef5e2428@collabora.com> To: =?utf-8?q?Ville_Syrj=C3=A4l=C3=A4?= , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Louis Chauvet , Haneen Mohammed , Melissa Wen , Daniel Stone , Ian Forbes , Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, kernel@collabora.com, wayland-devel@lists.freedesktop.org, Nicolas Frattaroli , Marius Vlad X-Mailer: b4 0.15.2 From: Marius Vlad Introduce a new boolean variable used to track whether a connector has changed its status since the last hotplug event for it was sent to userspace. It is used by both the polling and HPD path. A subsequent change will make use of this new member to propagate per-connector udev hotplug events to userspace, rather than sending a global hotplug event. Signed-off-by: Marius Vlad Signed-off-by: Nicolas Frattaroli --- drivers/gpu/drm/drm_connector.c | 1 + drivers/gpu/drm/drm_probe_helper.c | 17 +++++++++++++++++ drivers/gpu/drm/drm_sysfs.c | 2 ++ include/drm/drm_connector.h | 3 +++ 4 files changed, 23 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 3fa4d2082cd7..b1abdef6778a 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -274,6 +274,7 @@ static int drm_connector_init_only(struct drm_device *dev, /* provide ddc symlink in sysfs */ connector->ddc = ddc; + connector->pending_hp = false; INIT_LIST_HEAD(&connector->head); INIT_LIST_HEAD(&connector->global_connector_list_entry); diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index d4dc8cb45bce..f8cbd6713960 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -732,6 +732,17 @@ EXPORT_SYMBOL(drm_helper_probe_single_connector_modes); */ void drm_kms_helper_hotplug_event(struct drm_device *dev) { + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + + mutex_lock(&dev->mode_config.mutex); + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + connector->pending_hp = false; + } + drm_connector_list_iter_end(&conn_iter); + mutex_unlock(&dev->mode_config.mutex); + drm_sysfs_hotplug_event(dev); drm_client_dev_hotplug(dev); } @@ -748,6 +759,10 @@ void drm_kms_helper_connector_hotplug_event(struct drm_connector *connector) { struct drm_device *dev = connector->dev; + mutex_lock(&dev->mode_config.mutex); + connector->pending_hp = false; + mutex_unlock(&dev->mode_config.mutex); + drm_sysfs_connector_hotplug_event(connector); drm_client_dev_hotplug(dev); } @@ -837,6 +852,7 @@ static void output_poll_execute(struct work_struct *work) old_epoch_counter, connector->epoch_counter); changed = true; + connector->pending_hp = true; } } drm_connector_list_iter_end(&conn_iter); @@ -1101,6 +1117,7 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev) first_changed_connector = connector; } + connector->pending_hp = true; changed++; } } diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index ef4e923a8728..47a6b322e873 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -216,6 +216,8 @@ static ssize_t status_store(struct device *device, connector->base.id, connector->name, old_force, connector->force); + connector->pending_hp = true; + connector->funcs->fill_modes(connector, dev->mode_config.max_width, dev->mode_config.max_height); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 3e422a4f2e72..70a740301089 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -2251,6 +2251,9 @@ struct drm_connector { /** @force: a DRM_FORCE_ state for forced mode sets */ enum drm_connector_force force; + /** @pending_hp: true if connector changed since last hotplug event */ + bool pending_hp; + /** * @edid_override: Override EDID set via debugfs. * -- 2.53.0